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- // SPDX-License-Identifier: GPL-2.0+
- #include <common.h>
- #include <command.h>
- #include <env.h>
- #include <fs.h>
- #include <pxe_utils.h>
- /**
- * struct sysboot_info - useful information for sysboot helpers
- *
- * @fstype: Filesystem type (FS_TYPE_...)
- * @ifname: Interface name (e.g. "ide", "scsi")
- * @dev_part_str is in the format:
- * <dev>.<hw_part>:<part> where <dev> is the device number,
- * <hw_part> is the optional hardware partition number and
- * <part> is the partition number
- */
- struct sysboot_info {
- int fstype;
- const char *ifname;
- const char *dev_part_str;
- };
- static int sysboot_read_file(struct pxe_context *ctx, const char *file_path,
- char *file_addr, ulong *sizep)
- {
- struct sysboot_info *info = ctx->userdata;
- loff_t len_read;
- ulong addr;
- int ret;
- addr = simple_strtoul(file_addr, NULL, 16);
- ret = fs_set_blk_dev(info->ifname, info->dev_part_str, info->fstype);
- if (ret)
- return ret;
- ret = fs_read(file_path, addr, 0, 0, &len_read);
- if (ret)
- return ret;
- *sizep = len_read;
- return 0;
- }
- /*
- * Boots a system using a local disk syslinux/extlinux file
- *
- * Returns 0 on success, 1 on error.
- */
- static int do_sysboot(struct cmd_tbl *cmdtp, int flag, int argc,
- char *const argv[])
- {
- unsigned long pxefile_addr_r;
- struct pxe_context ctx;
- char *pxefile_addr_str;
- struct sysboot_info info;
- char *filename;
- int prompt = 0;
- int ret;
- if (argc > 1 && strstr(argv[1], "-p")) {
- prompt = 1;
- argc--;
- argv++;
- }
- if (argc < 4)
- return cmd_usage(cmdtp);
- if (argc < 5) {
- pxefile_addr_str = from_env("pxefile_addr_r");
- if (!pxefile_addr_str)
- return 1;
- } else {
- pxefile_addr_str = argv[4];
- }
- if (argc < 6) {
- filename = env_get("bootfile");
- } else {
- filename = argv[5];
- env_set("bootfile", filename);
- }
- if (strstr(argv[3], "ext2")) {
- info.fstype = FS_TYPE_EXT;
- } else if (strstr(argv[3], "fat")) {
- info.fstype = FS_TYPE_FAT;
- } else if (strstr(argv[3], "any")) {
- info.fstype = FS_TYPE_ANY;
- } else {
- printf("Invalid filesystem: %s\n", argv[3]);
- return 1;
- }
- info.ifname = argv[1];
- info.dev_part_str = argv[2];
- if (strict_strtoul(pxefile_addr_str, 16, &pxefile_addr_r) < 0) {
- printf("Invalid pxefile address: %s\n", pxefile_addr_str);
- return 1;
- }
- if (pxe_setup_ctx(&ctx, cmdtp, sysboot_read_file, &info, true,
- filename, false)) {
- printf("Out of memory\n");
- return CMD_RET_FAILURE;
- }
- if (get_pxe_file(&ctx, filename, pxefile_addr_r) < 0) {
- printf("Error reading config file\n");
- pxe_destroy_ctx(&ctx);
- return 1;
- }
- ret = pxe_process(&ctx, pxefile_addr_r, prompt);
- pxe_destroy_ctx(&ctx);
- if (ret)
- return CMD_RET_FAILURE;
- return 0;
- }
- U_BOOT_CMD(sysboot, 7, 1, do_sysboot,
- "command to get and boot from syslinux files",
- "[-p] <interface> <dev[:part]> <ext2|fat|any> [addr] [filename]\n"
- " - load and parse syslinux menu file 'filename' from ext2, fat\n"
- " or any filesystem on 'dev' on 'interface' to address 'addr'"
- );
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